2 citations · 3 across the 3 of their papers we have counts for
5 papers
Relative Entropy-Regularized Optimal Transport on a Graph: a new algorithm and an experimental comparison
Sylvain Courtain, Guillaume Guex, Ilkka Kivimaki +1
Following [21, 23], the present work investigates a new relative entropy-regularized algorithm for solving the optimal transport on a graph problem within the randomized shortest p…
A Non-negative Matrix Factorization Based Method for Quantifying Rhythms of Activity and Sleep and Chronotypes Using Mobile Phone Data
Talayeh Aledavood, Ilkka Kivimäki, Sune Lehmann +1
Human activities follow daily, weekly, and seasonal rhythms. The emergence of these rhythms is related to physiology and natural cycles as well as social constructs. The human body…
A Constrained Randomized Shortest-Paths Framework for Optimal Exploration
Bertrand Lebichot, Guillaume Guex, Ilkka Kivimäki +1
The present work extends the randomized shortest-paths framework (RSP), interpolating between shortest-path and random-walk routing in a network, in three directions. First, it sho…
Randomized Optimal Transport on a Graph: framework and new distance measures
Guillaume Guex, Ilkka Kivimäki, Marco Saerens
The recently developed bag-of-paths (BoP) framework consists in setting a Gibbs-Boltzmann distribution on all feasible paths of a graph. This probability distribution favors short…
Semi-Supervised Classification Through the Bag-of-Paths Group Betweenness
Bertrand Lebichot, Ilkka Kivimäki, Kevin Françoisse +1
This paper introduces a novel, well-founded, betweenness measure, called the Bag-of-Paths (BoP) betweenness, as well as its extension, the BoP group betweenness, to tackle semisupe…